John Summerfied wrote:
Paul Howarth wrote:
I tried the above once, and got in a mess;
"yum install" was not a straightforward inverse of "yum remove".
Yes, this is true.
Consider the package sendmail-cf, which depends on sendmail.
"yum remove sendmail" will remove sendmail-cf too, because it depends
on sendmail.
"yum install sendmail" will install sendmail, but not sendmail-cf,
since sendmail itself does not depend on sendmail-cf.
The correct inverse is
yum install sendmail-cf
because that's what the dependencies say: sendmail-cf depends on sendmail,
Think about it.
True, but I was agreeing with the statement that `"yum install" was not
a straightforward inverse of "yum remove"', which is true.
The inverse of a "yum remove" may require specifying multiple packages
for a "yum install". Consider packages a, b, and c, where b and c are
dependent on a. "yum remove a" will remove all three packages, and "yum
install b c" would be needed to get them all back again.
Paul.
